Whats overboost??? - SEAT Cupra.net

unikarl · 27-07-2004, 12:05

My Leon currently boosts up to 20 PSI but as soon as it gets there the engine seems to have a barnie and drop the boost right back down to 15 PSI. It feels great when it hits 20 aswell and you can really notice it when the boost drops back. Is my car overboosting? Is there anything else that this could be.

The car is a 2000 Leon cupra with 51k on the clock and it has been jabba'd.

Any ideas kids?

*Chaz* · 27-07-2004, 12:09

20PSI is really high - that cant be good for your turbo!

*Cupramax* · 27-07-2004, 12:22

High but not unheard of. Someone who used to post on here ran 22psi for over 100,000 miles on a K03 without blowing it.

Anyone remember Mosser?

Doubt Mike would over do the boost, not good for PR blowing up engines...

unikarl · 27-07-2004, 12:29

So if its not overboosting then what else could it be thats telling my turbo to stop having fun?

Mike was very, very thorough with the car so im confident it isnt anything to do with the remap. Could it be my N75 (standard SEAT one) playing up? Maybe its worth me investing in the N75J just to see if its any better. The car is not logging any faults on vag com and the maf readings are good.

*Cupramax* · 27-07-2004, 12:43

Check ya DV's not shafted if its dropping boost...

unikarl · 27-07-2004, 12:45

DV's a brank spankin new bailey jobbie fitted by jabba. Dp you know how you can test them?

*Cupramax* · 27-07-2004, 12:59

Have you got the original? try it...

unikarl · 27-07-2004, 13:02

The original was goosed. I might be able to get hold of one as a test though.

Thanks for your ideas guys.

*andycupra* · 27-07-2004, 13:23

mmmm...

chipped?

most chips go to 20 psi but then go down to 15 or so when you get higher up rev range....

but not suddenly....

unikarl · 27-07-2004, 14:03

I thought that too. This is a very sudden drop though. It drops down slowly from 15PSI when you get to 5k and upwards.

**Saul** · 27-07-2004, 14:23

prolly hitting the boost threshold and the ecu slaps it down

unikarl · 27-07-2004, 14:40

So how can I stop that from happening?

Have I got another drive down to Jabba pending now???

*andycupra* · 29-07-2004, 13:21

mmm doesnt sound right.....

i can understand that it feels great when on 20, i feel that with my car..... it pulls really well then as the psi reduces its somehow disapointing....

id give jabba a ring im sure they will be happy to chat about it.
does the psi vary depending on which gear your accelerating in?

27-07-2004, 12:05	#1
unikarl Full Member Join Date: Nov 2002 Location: Yorks Posts: 125	Whats overboost??? My Leon currently boosts up to 20 PSI but as soon as it gets there the engine seems to have a barnie and drop the boost right back down to 15 PSI. It feels great when it hits 20 aswell and you can really notice it when the boost drops back. Is my car overboosting? Is there anything else that this could be. The car is a 2000 Leon cupra with 51k on the clock and it has been jabba'd. Any ideas kids?

27-07-2004, 12:22	#3
Cupramax Uber pimp meister Join Date: Aug 2001 Location: Bournemouth Posts: 4,042	High but not unheard of. Someone who used to post on here ran 22psi for over 100,000 miles on a K03 without blowing it. Anyone remember Mosser? Doubt Mike would over do the boost, not good for PR blowing up engines... __________________ A5 Cab 2.0T Sline

27-07-2004, 12:43	#5
Cupramax Uber pimp meister Join Date: Aug 2001 Location: Bournemouth Posts: 4,042	Check ya DV's not shafted if its dropping boost... __________________ A5 Cab 2.0T Sline

27-07-2004, 12:59	#7
Cupramax Uber pimp meister Join Date: Aug 2001 Location: Bournemouth Posts: 4,042	Have you got the original? try it... __________________ A5 Cab 2.0T Sline

27-07-2004, 13:23	#9
andycupra status subject to change Join Date: Aug 2003 Location: until tomorow, i just keep moving on... Posts: 6,138	mmmm... chipped? most chips go to 20 psi but then go down to 15 or so when you get higher up rev range.... but not suddenly.... __________________ Power = 3 stilo . . . . . . . . Handling = 3 stilo Looks = 4 stilo . . . . . . . . Driver = How many Stilo do you have?

27-07-2004, 12:09	#2
Chaz Full Member Join Date: Apr 2004 Location: Hampshire/Berkshire/Surrey Border Posts: 613	20PSI is really high - that cant be good for your turbo!

27-07-2004, 12:29	#4
unikarl Full Member Join Date: Nov 2002 Location: Yorks Posts: 125	So if its not overboosting then what else could it be thats telling my turbo to stop having fun? Mike was very, very thorough with the car so im confident it isnt anything to do with the remap. Could it be my N75 (standard SEAT one) playing up? Maybe its worth me investing in the N75J just to see if its any better. The car is not logging any faults on vag com and the maf readings are good.

27-07-2004, 12:45	#6
unikarl Full Member Join Date: Nov 2002 Location: Yorks Posts: 125	DV's a brank spankin new bailey jobbie fitted by jabba. Dp you know how you can test them?

27-07-2004, 13:02	#8
unikarl Full Member Join Date: Nov 2002 Location: Yorks Posts: 125	The original was goosed. I might be able to get hold of one as a test though. Thanks for your ideas guys.

27-07-2004, 14:03	#10
unikarl Full Member Join Date: Nov 2002 Location: Yorks Posts: 125	I thought that too. This is a very sudden drop though. It drops down slowly from 15PSI when you get to 5k and upwards.

27-07-2004, 14:23	#11
Saul SCN Admin Join Date: May 2001 Location: Manchester Posts: 4,806	prolly hitting the boost threshold and the ecu slaps it down __________________ Saul SCN Admin email: saul@seatcupra.net url: http://www.seatcupra.net BMW E91 335i SNWMAPS 'Ring Tour 2003

27-07-2004, 14:40	#12
unikarl Full Member Join Date: Nov 2002 Location: Yorks Posts: 125	So how can I stop that from happening? Have I got another drive down to Jabba pending now???

29-07-2004, 13:21	#13
andycupra status subject to change Join Date: Aug 2003 Location: until tomorow, i just keep moving on... Posts: 6,138	mmm doesnt sound right..... i can understand that it feels great when on 20, i feel that with my car..... it pulls really well then as the psi reduces its somehow disapointing.... id give jabba a ring im sure they will be happy to chat about it. does the psi vary depending on which gear your accelerating in? __________________ Power = 3 stilo . . . . . . . . Handling = 3 stilo Looks = 4 stilo . . . . . . . . Driver = How many Stilo do you have?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

(View-All) Members who have read this thread : 5
deadmau5, jgo, Rocky Rocastle, v-g, Yaboy

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread: